Wall structure for gondolas or the like



Oct. 29, l1929.v s. M. CODE WALL STRUCTURE FOR GONDOLAS OR THE LIKE Filed sept. 27, 1928 FE1-.z

INVENTOR Patented Oct. 29, 1929 PATENT OFFICE SAMUEL M. CODE, OF DETROIT, MICHIGAN WALL STRUCTURE FOB GONDOLAS OB THE LIKE Application filed September 27, 1928. Serial No. 308,672.

This invention relates to certain novel improvements in wall structures for gondolas or the like, and has for its principal object the provision of an improved construction of 5 this character which will be highly eiicient in use and economical in manufacture.

In wall structures for vehicles of the class mentioned when such wall structures are partly submerged in water or become wet in stormy weather when used as a gondola with aircraft the wall, if the craft passes through clouds that are highly charged with electricity and the charge in passing from one cloud to the other passes through the frame of the craft, the wall structure will protect the occupants from a dangerous position. The same is true where the wall comes into contact with fire or the like. It is therefore one of the many objects of this invention to provide a wall structure which is iireproof, lightning-proof, and water-tight, the structure being such that in accomplishing these objects will be extremely light having resilient qualities without being detrimental to its required strength and stability.

Other objects will appear hereinafter.

The invention consists in the novel combination and arrangement of parts to be hereinafter described and claimed.

The invention will best be understood by reference to the accompanying drawings, wherein a preferred form of construction is shown, and in which Fig. 1 is a fragmentary sectional detail view of a wall structure embodying my invcntion;

Fig. 2 is a sectional detail view of the same, taken substantially on the line 2--2 of Fig. 1; and

Fig. 3 is a sectionalidetail view similar to that shown in Fig. 2, showing the method of introducing into the interior of the wall a composition.

In the preferred form of construction of includes an outer shell 10 which' may be of any metallic material with its joints 11 welded together partly before assembly and finished after the shell structure is completely assembled. After the formation of this outer my invention my improved wall structure shell 10 the inner surface thereof is insulated eby means of asbestos sheets 12. These asbestos sheet 12 extend over the outer ends of the dielectric spacer or staid blocks 13. Any number of these blocks 13 may be utilized in the assembly of the inner shell 14 and the outer shell 10, the blocks 13 may be secured at either end by any preferred method. The inner shell 14 is preferably formed of non-conductive impregnated fibrous asbestos material and provided in this inner shell is an openingl having its edge fixed with threads 16. Through this opening 15 there is introduced by my novel means a composition for purposes to be more fully hereinafter described. Upon the inner surface of the inner shell 14, over the opening 15 there is arranged a bearing block 17 of non-conductive material rotatably supporting a spindle 18. This spindle 18 supports for rotation a disc 19 having on its inner side a plurality of tapered tins or blades 2O of non-conductive material, Vany number of these discs may be employed.

Removably threaded in the opening 16 is a conduit 21 and positioned in this conduit 21 is a flexible shaft 22 adapted to have connection with the spindle as at 23 in any Well known manner.

Having described the shell structure of the wall I will now proceed to describe my novel method of introducing a heated granulated cork into the shell of the wall which will lighten the wall structure, and increase its non-conductive properties. The conduit 21 is adapted to be connected to an air blast which with great force will inject the heated granulated cork toward the iin bearing disc 19. The shaft 22, during this operation is rotated at high speed and rotates the disc 20 with its fins at an equal high speed of rotation whereby when the heated granulated cork is introduced into the wall it will strike the iins of the disc and by this means will be thrown with terriic force in various directions within the shell and take the form of avsolid mold.

There may be arranged at suitable position between the lining 12 and the inner shell 14 `blocks 24 of any desired shape having grooved edges 24 preferably formed of cork and thesf blocks may have theirsurfaces painted with rosin dissolved in alcohol so that it will mold or merge with the granulated cork in a man ner now to be explained.

After the space between the lining 12 and the inner shell A14 is completely filled with the granulated cork, the pipe 21 is disconnected and the shaft 22 removed, and the opening 15 closed by means of athreaded disc or the like. The'wall structure is now ready for baking and when placed into a heated oven or the like, theheat will tend to draw the natural rosin from the cork filling so that all the cork when cooled will be molded together and to the blocks 24. Any opening\made in the wall after or before it is completed will be reinforced by non-conductive material so that the complete inner structure of the shell from the lining 12 will have no metallic conductive members. It will thus be seen by inspecting the drawing taken in connection with the description herein, that the outer shell lining being of a non-conductive fire-proof material will not permit any flame progress upon the shell structure; that the cork when molded into asolid unit forms a wall section which has suiiicient resiliency and at the same time lightness and durability. In

this manner, a wall structure is formed which will be fire-proof, lightning-proof and watertight, and is adaptable for use upon vehicle bodies propelled on land, water, or in the air.

" While I have illustrated and described the preferred form of construction for carrying the invention into effect this is capable of variations and modifications without departing from the spirit of this invention. I, therefore, do not wish to be limited to the precise details of construction set forth herein, but desire to avail myself of such variations'and modification as come within the scopeof the appended claims. v Having thus described my invention, what I claim as new and desire to protect by Letters Patent is:

1. A wall structure for a gondola or the like comprising an outer metallic shell, an inner shell of non-conductive material, a nonconductive fireproof lining upon the inner surface of the outer shell, dielectric spacing 'means between the lining and the inner shell,

and a filler for the space between the lining and the inner shell comprising a granulated non-conductive and infiammable material -inner shell of non-conductive impregnated fibrous material, a non-conductive fire-proof lining upon the inner surface ofthe outer shell,l dielectric spacing means between the lining and the inner shell, a filler for the space between the lining and the inner shell comprising a. granulated nonconductive and .inflammable material moldedinto a soli-d unit,

and means for introducing said filler in a granulated and heated form into the space p between the lining and the inner shell.

3. A wall structure for a gondola or the like comprising an outer metallic shell, an inner shell of non-conductive material, a non- .conductive fire-proof lining upon.' the inner surface, of the outer shell, dielectricspacing y means between the lining and the inner shell,-

a filler for the space between the lining and and having grooved edges to receive the filler.

4. A wall structure for a gondola or the like comprising anA outer metallic shell, anv

inner shell'of non-conductive impregnated.

- brous material, a non-conductive fire-proof lining upon the inner surface ofthe outer shell, dielectric spacing means between the lining and the inner shell, a filler for space bei tween the lining and the inner shell'comprising a granulated non-conductive and infiammable material molded into a solid unit, inflammable and non-conductive members positioned between the lininO' and the inner shell at spaced intervals and having grooved edges-to receive the filler, said grooved edges having their surface coated with a substance for adhesive connection with adjacent portions of the filler.

5. The method of constructing a lightningproof, water-proof and lire-proof wall consisting of a metallic shell with a non-conductive fire-proof lining, dielectric spacing a non- 'conductive inner shell, introducing under pressure into the space between the lining and the inner shell a heated granulated substance, and then placing the unit thus formed into a baking oven whereby said substance will be molded together in a solid unit within said space.

6. The method of constructing a lightningproof, water-proof and fire-proof wall consisting of a metallic shell with a non-'conductive lire-proof lining, an inner shell of nonconductive, impregnated fibrous material, dielectric spacing from said lining and nonconductive. inner shell, introducing under pressure into the space between the lining and inner shell a granulated heated cork substance. and then placing the unit thus formed in a baking oven whereby said substance will he molded together in a solid unit within said space.

In testimony whereof I affix my signature.

SAMUEL M. CODE. 

